| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot dip galvanized steel sheet and a hot dip galvannealed steel sheet excellent in appearance. SOLUTION: This hot dip galvanized steel sheet excellent in appearance is the one in which the absolute value of the difference in the plane intensity of a base steel sheet defined by formula I:|Δ|is regulated to <=3.0, the intensity of the (110) plane in the base steel sheet: (110)S is regulated to <=0.5, the plane intensity ratio in the base steel sheet: (222)S/[ (200)S}<2> ] is regulated to <=3.0, and also, the contents of Al and Zn in the plating layer satisfy the relation in the inequality II: the formula I:|Δ|=|(222)S-(222)1/4|and the inequality II: [Al(g/m<2> )]-0.0012×[Zn(g/m<2> )]>=0.03 [(110)S, (222)S and (200)S; the X-ray diffraction integrated intensity of the (110) plane, the (222) plane and the (200) plane in ferrite, and (222)1/4 ; the X-ray diffraction integrated intensity of the (222) plane in ferrite in the vertical direction to the sheet face in a depth of 1/4 of the sheet thickness of the base steel sheet].
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